Chlorine has two naturally occuring isotopes - chlorine-35 and chlorine-37. Elaborate on how the atomic mass is determined given that chlorine-35 has an abundance of 75.78% and has a mass of 34.969 amu and that chlorine-37 has an abundance of 24.22% and a mass of 36.966 amu.

Answers

Answer 1

Answer: because the gmm for chlorine is 35.5 which is the average of all of those combined, so the percentages reflect how much of each isotope is needed to make the average that specific mass per mole

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What is the name of the chemical NaSO3?

A hydrogen ion, H+, in aqueous solution may also be written as(1) H2O (3) H3O+
(2) H2O2 (4) OH–

Answers

Answer: Option (3) is the correct answer.

Explanation:

In an aqueous solution, a compound exists in the form of ions that is in the form of protons and electrons.

Protons are positively charged and electrons are negatively charged. A proton (usually hydrogen ion, $H^(+)$ ) in water (solvent) also exists as $H_(3)O^(+)$ .

For example, $H_(2)O + HCl \rightleftharpoons H_(3)O^(+) + Cl^(-)$

This shows that the conjugate acid of $H_(2)O$ is $H_(3)O^(+)$ .

Thus, we can conclude that a hydrogen ion, H+, in aqueous solution may also be written as $H_(3)O^(+)$ .

The answer is (3) H3O+. In solution, H+ exists interchangeably bound to H2O (as the hydronium ion) and as a free ion. Some books represent strong acids in net ionic equations as simply H3O+

Hich one of the following is radical?(1 Point)

a.NH4+

b. CuSO4

c. CH4

d. NH3

Answers

Answer:

NH4+

Explanation:

Radicals are molecules or atoms which contain unpaired electrons. the exponent +4 represents 4 electrons in the outer shell which are unpaired

What is the maximum amount of NaCl that can dissolve in 300 g of water? (the solubility of NaCl is 36.2 g/100 g H2O at 20 ⁰C.) please don't do the work.What chemistry equation do I have to use to solve this?

Answers

102g is the amount that can be dissolved

What are the differences between synthesis and decomposition reactions

Answers

Answer:

Explanation:

synthesis reaction have 2 or more reactants and produce only 1 product.

Example

2 Na + S --> Na2S

Decomposition reactions are the opposite. they have 1 reactant that is broken down into 2 or more products

Na2S ---> 2 Na + S

The mass number of an isotope of uranium is 238, and its atomic number is 92. Which symbol best represents this isotope of uranium?

Answers

Answer: The isotope will be represented by symbol $^(238)_(92)U$ .

Solution:

The isotope of an element is represented by:

$^(A)_(Z)X$

X = Symbol of an element

Z = Atomic Number of that element = Total number of electrons or protons

A = atomic mass of that element = Z+ total number of neutrons

So the uranium isotope with atomic mass of 238 and atomic number of 92 will be written as:

$^(238)_(92)U$

Answer:

B. 238/92 U

Explanation:

Correct answer on edge 2022

The glow emitted by a substance exposed to eternal radiation is called

Answers

The glow emitted by a substance exposed to external radiation is called 'fluorescence'. In fluorescence, a fluorophore is exposed to external radiation, absorbs the energy and emits a form of light or glow. The answer to this question is 'fluorescence'. I hope this helps.

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